399246909325 has 24 divisors (see below), whose sum is σ = 563553590976. Its totient is φ = 277736976000.

The previous prime is 399246909311. The next prime is 399246909331. The reversal of 399246909325 is 523909642993.

It is not a de Polignac number, because 399246909325 - 2¹³ = 399246901133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31554696 + ... + 31567345.

It is an arithmetic number, because the mean of its divisors is an integer number (23481399624).

Almost surely, 2^399246909325 is an apocalyptic number.

It is an amenable number.

399246909325 is a deficient number, since it is larger than the sum of its proper divisors (164306681651).

399246909325 is a wasteful number, since it uses less digits than its factorization.

399246909325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63122085 (or 63122080 counting only the distinct ones).

The product of its (nonzero) digits is 28343520, while the sum is 61.

The spelling of 399246909325 in words is "three hundred ninety-nine billion, two hundred forty-six million, nine hundred nine thousand, three hundred twenty-five".